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The Application Notebook-06-01-2015
The Application Notebook
TSKgel Amide-80, 2 m Columns for the Analysis of Glycans
June 01, 2015
Medical/Biological
0
Most proteins, particularly soluble and membrane-bound proteins expressed in the endoplasmic reticulum, are glycosylated. The extent and result of glycosylation varies.
Determination of Organochlorine Pesticides in Serum via QuEChERS and GC–MS
June 01, 2015
Medical/Biological
0
Organochlorine (OC) pesticides are hydrocarbons with multiple chlorine substitutions primarily used as insecticides. OC pesticides do not break down easily as the chlorine-carbon bonds are very strong.
High-Speed SFC Enantiomeric Separation Using the Optimal Daicel SFC Chiral Columns
June 01, 2015
Chiral
0
Supercritical fluid chromatography (SFC) is an evolutionary technology and a powerful tool for enantiomer separation when used in combination with chiral stationary phases (CSPs).
LC–MS-MS Measurement of EPA Method 1694 Pharmaceuticals and Personal Care Products in Water
June 01, 2015
Environmental
0
This method increases sensitivity and reduces data acquisition time for a subset of pharmaceuticals and personal care products from the original EPA Method 1694 specifications.
Fingerprinting Analysis of Different Types of Beer
June 01, 2015
Food & Beverage
0
This application note demonstrates the comprehensive 2D-LC analysis of different types of beer. Nontargeted, multisample analysis (fingerprinting analysis) enabled a classification of the different types of beer analyzed.
A New HILIC Column for Saccharide Analysis
June 01, 2015
Food & Beverage
0
Due to the highly polar nature of saccharides, the analysis of sugars is typically achieved using hydrophilic interaction chromatography (HILIC).
Arsenic Speciation on Hamilton PRP-X100
June 01, 2015
Food & Beverage
0
Organic arsenic compounds added to feed stocks of chicken and poultry pose serious environmental and ecological threats. National and worldwide health organizations, such as the United States Environmental Protection Agency and the US Food and Drug Administration, have recently implemented more stringent concentration limits for arsenic species in drinking water and foodstuffs.
Automated Solid Phase Extraction for Efficient Extraction of Fluoroquinolone Antibiotics from Fish
June 01, 2015
Food & Beverage
0
The global demand for fish as a natural source of fresh animal protein, essential fats, minerals, and vitamins continues to rise with the human population.
Analysis of Nitrosamines in Malt
June 01, 2015
Food & Beverage
0
In brewing, barley undergoes a malting process, the grain if first drenched to make it germinate and then dried in kilns to capture the sugar and flavor compounds for the brewing process.
Accurate Pain Management Analysis in Under 5 Min on Raptor Biphenyl Superficially Porous Particle LC Columns
June 01, 2015
Pharmaceutical/Drug Discovery
0
Pain management LC analyses can be difficult to optimize due to the limited selectivity of C18 and phenyl-hexyl phases.
Structure-Molecular Weight Relationships of Synthetic Polymers
June 01, 2015
Polymer
0
The physical properties and behavior of polymers depends strongly on the properties of the polymer molecules themselves
Characterization of PLGA Using SEC–MALS-VIS
June 01, 2015
Pharmaceutical/Drug Discovery
0
Poly(lactic-co-glycolic acid) (PLGA) is a copolymer based on glycolic acid and lactic acid. The two monomer units are linked together by ester linkages and form linear polyester chains
CAPCELL CORE ADME S2.7, a Novel Adamantyl Stationary Phase, Alternative to C18 for Improved Separation of Metabolites
June 01, 2015
Pharmaceutical/Drug Discovery
0
CAPCELL CORE ADME S2.7 (ADME) is a column packed with a novel stationary phase of superficially porous silica (core shell particle) modified by adamantyl functional groups.
Improved Retention for Polar Organic Acids with Unique Multi-Mode Columns in Reversed Phase Conditions
June 01, 2015
General
0
The challenging retention of polar organic acids in reversed phase conditions is accomplished using a unique multi-mode stationary phase.
Enhanced-Fluidity Liquid Chromatography: Connecting the Dots Between Supercritical Fluid Chromatography, Conventional Subcritical Fluid Chromatography, and HPLC
June 01, 2015
Articles
0
Enhanced-fluidity liquids are organic solvents or organic–aqueous solvents mixed with high proportions of liquefied gases, such as carbon dioxide.
Replacing Stacked Ring Reflectron Lenses with Segmented Monolithic Resistive Glass
June 01, 2015
General
0
Reflectron lenses are used in time-of-flight (TOF) mass spectrometers to create an electrostatic field to alter ion flow, providing for a longer flight path and therefore greater resolution.
An Accurate-Mass Database for Screening Pesticide Residues in Fruits and Vegetables by Gas Chromatography–Time-of-Flight Mass Spectrometry
June 01, 2015
Articles
0
The main objective of this study was to evaluate the capabilities of gas chromatography (GC) with time-of-flight mass spectrometry (MS) for screening pesticides in fruits and vegetables using a purpose-built accurate-mass database.
Vol 33 No 6 LCGC North America June 2015 Application Notebook PDF
June 01, 2015
Issue PDF
0
Click the title above to open the LCGC North America June 2015 Application Notebook, Vol 33 No s6, in an interactive PDF format.